Neck-yoke center.



PATENTE-D JUNE'19, .1906.'

G. 6v RAID. NECK YOKE CENTER. PPLIUATION FILED 1:20.20, 1905 GEORGE-AID'AND FREDERICK AID, OF GALLATIN, MISSOURI.

NECK-Yoke GENTER.

Specification of Letters Patent.

Patented une 19, 1 906.

Application filed December 20, 1905. Serial No. 292,564.

To all whom, it may concern: l

Be it known that we, GEORGE AID and FREDERICK AID, citizens of theUnited States, residing at Gallatin, in the countyof Daviess and Stateof Missouri, have invented certain new and useful Improvements inNeck-Yoke Centers; and we do hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe annexed drawings, making a part of this specification, and to theletters of reference marked thereon.

The present invention has for its obj ect to provide aneck-yoke centerthat will be simple in construction and effective in its purpose inpreventing the same from pounding the polek and adding materially to thegeneral usefulness of the device.

The invention consists in a neck-yoke center constructed substantiallyas shown in the drawings and hereinafter described and claimed.

Figure 1 of the drawings is a perspective view of a neck-yoke centerconstructed in accordance with our invention; Fig. 2, a side elevation,partly in section, showing the pole in engagement with the pole-ring;Fig. 3, a transverse sectional elevation taken on line 3 3 of Fig. 2;Fig. 4, a sectional view showing a modification; Fig. 5, a detailperspective view of the cam-block.

'In the accompanying drawings, A represents the usual yoke-band'of anypreferred construction, and B the ring to which the vehicle-pole isconnected, as indicated at C. The yoke-band A has ears or flanges a,between which is secured the eye l) of the presserblock D, which f ormsa part of the locking device, a bolt or other suitablefastening cconnecting the eye with the flanges of the yoke-band. The locking deviceconsists of two parts-viz., the presser-block D, hereinbefore described,and the cam-block E, the cam-block being operated by the presserblock toforce the former down withifrictional contact upon the pole C. u

It will be noticed in Fig. 2 of the drawings that a space is leftbetween the under side of the presser-block D and the upper side of thecam-block E, as indicated at d, which will admit ofthe presser-block torock slightly back and forth, and when the outer end of the resser-blockcomes in contactwith the camlilock it will cause the lattery to press onthe vehicle-pole, which locks on same and prevents the neck-yoke centerslipping from the pole should the traces become broken or detached.Theunder side of the cam-block is concave to correspond with theconvexity of the pole, as indicated at e, so that ther under side of thecam-block will come in frictional contact with the vehicle-pole whenpressed down by the presser-block. The presserblock D and the cam-blockE are suitably connected by a bolt or other suitable fastening f to thevehicle-pole ring B between the ears or ilanges g thereof. Any suitablemeans, however, may be employed for pivotally connecting thepresser-block D to the yoke-band A and to the vehicle-pole ring B andsuitable means em loyed for pivotally connecting the cam-bloc E to saidpole-ring as found best adapted to the purpose, and in the presentinstance is shown the bolt f, eX'- tending through holes in the ears orflanges g of the pole-ring and through suitably-formed holes in ears orflanges h of the cam-block,

the presser-block being located .between the i ears, as shown.

The cam-block E may be constructed in two longitudinal sections, asindicated in Figyl of the drawings, to facilitate casting or may be madein a single piece, as shown in Fig. 5 of the drawings, as found mostpreferable, as we donot wish to lconfine our invention to any particularmeans of construction.

In place of the ears or flanges h upon the cam-block E said flanges maybe on the presser-block D and the cam-block formed with a central web,said flanges and central web being shown at i y', respectively, in Fig.4 of the drawings, the same result being obtained as in the constructionshown in Fig. 1 of the drawings. The holes k in the ears or flanges h ofthe cam-block D may be of such form as to admit` of a little clearanceor space between the outer ends of the presser-.block and the end of thecam-block, as indicated-at d,

hereinbefore referred to, thus allowing of the cam-block to rockslightly back and forth,

round or elongated holes being used as found most preferable. When around hole is used, it should be slightly larger in circumference thanthe circumference of the fastening-bolt to admit of this rockingmovement ofthe IOO IOS

cam-block and when elongated holes are used, as shown in Fig. 5 ofthedrawings, it will allow the cam-block to be pressed down on a smallervehicle-pole, giving a longer bearin Thelocks D and E as will benoticed, are pivotally connected to the ears or ilanges g IIO of thevehicle-pole ring B by one and the same bolt or pivot-pin7 and thelength and width of the bearing or concave face of the cam-block Eprovides a long and broad bearing on the vehicle-pole which prevents itfrom cramping the same. It is evident that both the blocks D and E maybe constructed in any suitable manner found most preferable without inany manner departing from the essential featuresof the invention and anychanges or modiiications as would come within ordinary mechanicaljudgment may be resorted to and still come within the scope of theinvention.

Having now fully described our invention, what we claim as new, anddesire to secure by Letters Patent, isf A neck-yoke center comprising ayokeband and pole-ring, a cam-block having a concave bearing-face uponits under side eX- tending the entire length thereof and provided withupwardly projecting ears, a presser-block located between the ears ofsaid bearing, a single pivot connecting the caniblock and thepresser-block together and to the pole-ring7 the ends of said blocksextending out beyond the pole-ring and the presserblock pivotallyconnecting with the yokeband7 substantially as and for the purpose setforth.

In testimony whereof we aHix our signatures in presence of twowitnesses.

GEORGE AID. FREDERICK AID.

Witnesses:

J. A. CARAWAY, T. P. THOMPSON

